CN109627908A - A kind of corrosion-resistant heat resistant epoxide resin coating - Google Patents
A kind of corrosion-resistant heat resistant epoxide resin coating Download PDFInfo
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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Abstract
The invention discloses a kind of corrosion-resistant heat resistant epoxide resin coating, raw material includes: that 40-60 parts of epoxy resin, 2-5 parts of acrylic resin, 3-8 parts of silicone resin, 2-5 parts of trbasic zinc phosphate, 2-6 parts of modified manometer silicon dioxide, 0.5-1.8 parts of flake asbestos, 0.3-1.7 parts of carbon fiber, nano-titanium be 0.5-1.6 parts black, 0.1-1 parts of hydrotalcite, 1-2.8 parts of coal gangue powder, 1-3 parts of Nano titanium nitride, 2-7 parts of polyamide, 3-6 parts of trimellitic anhydride N-butyl, 2-5 parts of triethanolamine, 29-38 parts of solvent, 1-3 parts of auxiliary agent by weight.Corrosion-resistant heat resistant epoxide resin coating proposed by the present invention, good corrosion resistance strong with the adhesive force of substrate, heat resistance and excellent shock resistance.
Description
Technical field
The present invention relates to technical field of coatings more particularly to a kind of corrosion-resistant heat resistant epoxide resin coating.
Background technique
Epoxy coating has good mechanical performance, electrical insulation capability and preferable heat, chemical stability, and has
Anti-corrosion and waterproof, the advantages such as mould proof, shrinking percentage is low, it is strong, easily processed into type with the adhesive force of metal, it has been widely used at present
Automobile, shipbuilding, aviation, machinery, chemical industry and large hydraulic engineering and civil construction industry etc.；But epoxy resin film
Heat resistance it is not good enough, this just greatly limits it in the application in certain fields.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of corrosion-resistant heat resistant epoxide resin coating,
Strong, good corrosion resistance, heat resistance and excellent shock resistance with the adhesive force of substrate.
A kind of corrosion-resistant heat resistant epoxide resin coating proposed by the present invention, raw material includes: epoxy resin 40- by weight
60 parts, 2-5 parts of acrylic resin, 3-8 parts of silicone resin, 2-5 parts of trbasic zinc phosphate, 2-6 parts of modified manometer silicon dioxide, flake asbestos
0.5-1.8 parts, 0.3-1.7 parts of carbon fiber, nano-titanium is 0.5-1.6 parts black, 0.1-1 parts of hydrotalcite, 1-2.8 parts of coal gangue powder, receives
1-3 parts of titanium nitride of rice, 3-6 parts of trimellitic anhydride N-butyl, 2-5 parts of triethanolamine, 29-38 parts of solvent, helps 2-7 parts of polyamide
1-3 parts of agent.
Preferably, the epoxy resin is modifying epoxy resin by organosilicon.
Preferably, the acrylic resin is the acrylic resin containing epoxy group.
Preferably, the modified manometer silicon dioxide is prepared according to following technique: being with silane resin acceptor kh-550
Modifying agent is modified nano silica, obtains amination nano silica；By amination nano silica, quality
The formalin that score is 37% mixes, and 5-8h is reacted in ice-water bath, and the toluene solution of parahydroxyben-zaldehyde is then added,
3.5-5.5h is reacted at 60-70 DEG C, is washed after reaction, is dried to obtain the modified manometer silicon dioxide.
Preferably, in the preparation process of modified manometer silicon dioxide, silane resin acceptor kh-550, nano silica
Weight ratio is 0.4-0.7:1；Amination nano silica, the formalin that mass fraction is 37%, parahydroxyben-zaldehyde
Weight ratio is 1.4-1.7:0.5-0.8:2-3.
Preferably, the black average grain diameter of the nano-titanium is 80-100nm.
Preferably, the solvent is the mixture of one or more of methylisobutylketone, dimethylbenzene, acetone, furfural.
Preferably, the auxiliary agent includes anti-settling agent, wetting dispersing agent, defoaming agent and levelling agent, and anti-settling agent, wetting and dispersing
The weight ratio of agent, defoaming agent and levelling agent is 2-3:0.2-1:0.3-0.9:0.1-1.
Corrosion-resistant heat resistant epoxide resin coating of the present invention can be according to conventional epoxy coating preparation process system
It is standby to form.
Corrosion-resistant heat resistant epoxide resin coating of the present invention is added to simultaneously using epoxy resin as major ingredient in raw material
Acrylic resin, silicone resin and its cooperate, silicone resin heat-resisting quantity therein is good, acrylic resin, silicone resin and ring
After oxygen resin complex, the advantages of playing each raw material, improves the safeguard function of film, assigns coating excellent corrosion resistance, together
When heat resistance and flexibility it is good；It is first to change with silane resin acceptor kh-550 in the preparation process of modified manometer silicon dioxide
Property agent nano silica is modified, obtain amination nano silica, later with amination nano silica with
Formaldehyde, parahydroxyben-zaldehyde are that raw material is reacted, and by the condition of control reaction, make the amino of nano-silica surface
It is reacted with parahydroxyben-zaldehyde and formaldehyde, so that the polybenzoxazine structure containing aldehyde radical has been introduced into nanometer titanium dioxide
The surface of silicon obtains modified manometer silicon dioxide, improves its property, is added into coating, during paint solidification,
Crosslink density is high, and cure shrinkage is low, thermal stability is good, at the same with trbasic zinc phosphate, flake asbestos, carbon fiber, nano-titanium be black, neatly
Stone, coal gangue powder, Nano titanium nitride cooperation, form network structure in the base, can effective dispersive stress, prevent
Stress is concentrated, and the impact resistance of film is substantially increased, during coating burns, carbon yield is high, and it is certain to assign coating
Anti-flammability, while significantly improving the heat resistance of coating；It has been specifically chosen polyamide, trimellitic anhydride N-butyl, triethanolamine
As curing agent, three cooperates, and reduces cured activation energy, is easier to carry out reaction, the compactness of gained coating
More preferably, adhesive force reaches 22.85MPa, and hardness reaches 104HR or more, impregnates in the sodium chloride solution that mass fraction is 3.5%
Without obvious corrosion, good corrosion resistance after for 24 hours.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of corrosion-resistant heat resistant epoxide resin coating proposed by the present invention, raw material includes: epoxy resin 60 by weight
Part, 2 parts of acrylic resin, 8 parts of silicone resin, 2 parts of trbasic zinc phosphate, 6 parts of modified manometer silicon dioxide, 0.5 part of flake asbestos, carbon fiber
1.7 parts, nano-titanium is 0.5 part black, 1 part of hydrotalcite, 1 part of coal gangue powder, 3 parts of Nano titanium nitride, 2 parts of polyamide, trimellitic anhydride
6 parts of N-butyl, 2 parts of triethanolamine, 38 parts of solvent, 1 part of auxiliary agent.
Embodiment 2
A kind of corrosion-resistant heat resistant epoxide resin coating proposed by the present invention, raw material includes: epoxy resin 40 by weight
Part, 5 parts of acrylic resin, 3 parts of silicone resin, 5 parts of trbasic zinc phosphate, 2 parts of modified manometer silicon dioxide, 1.8 parts of flake asbestos, carbon fiber
0.3 part, nano-titanium is 1.6 parts black, 0.1 part of hydrotalcite, 2.8 parts of coal gangue powder, 1 part of Nano titanium nitride, 7 parts of polyamide, inclined benzene three
3 parts of acid anhydrides N-butyl, 5 parts of triethanolamine, 29 parts of solvent, 3 parts of auxiliary agent.
Embodiment 3
A kind of corrosion-resistant heat resistant epoxide resin coating proposed by the present invention, raw material includes: epoxy resin 58 by weight
Part, 2.8 parts of acrylic resin, 7 parts of silicone resin, 2.8 parts of trbasic zinc phosphate, 5 parts of modified manometer silicon dioxide, 0.7 part of flake asbestos, carbon
1.5 parts of fiber, nano-titanium be 0.7 part black, 0.8 part of hydrotalcite, 1.4 parts of coal gangue powder, 2.7 parts of Nano titanium nitride, kymene part,
5.3 parts of trimellitic anhydride N-butyl, 2.8 parts of triethanolamine, 36 parts of solvent, 1.8 parts of auxiliary agent；
Wherein, the epoxy resin is modifying epoxy resin by organosilicon；
The acrylic resin is the acrylic resin containing epoxy group；
The modified manometer silicon dioxide is prepared according to following technique: using silane resin acceptor kh-550 as modifying agent pair
Nano silica is modified, and obtains amination nano silica；It is by amination nano silica, mass fraction
37% formalin mixing, 5h is reacted in ice-water bath, the toluene solution of parahydroxyben-zaldehyde is then added, anti-at 70 DEG C
3.5h is answered, washs after reaction, be dried to obtain the modified manometer silicon dioxide；
In the preparation process of modified manometer silicon dioxide, the weight ratio of silane resin acceptor kh-550, nano silica
For 0.4:1；The weight ratio of formalin, parahydroxyben-zaldehyde that amination nano silica, mass fraction are 37% is
1.7:0.5:3；
The black average grain diameter of the nano-titanium is 80nm；
The solvent is the mixture of dimethylbenzene, furfural；
The auxiliary agent includes anti-settling agent, wetting dispersing agent, defoaming agent and levelling agent, and anti-settling agent, wetting dispersing agent, defoaming
The weight ratio of agent and levelling agent is 2:1:0.3:1.
Embodiment 4
A kind of corrosion-resistant heat resistant epoxide resin coating proposed by the present invention, raw material includes: epoxy resin 46 by weight
Part, 4.3 parts of acrylic resin, 4 parts of silicone resin, 4.7 parts of trbasic zinc phosphate, 3 parts of modified manometer silicon dioxide, 1.6 parts of flake asbestos, carbon
0.5 part of fiber, nano-titanium be 1.3 parts black, 0.3 part of hydrotalcite, 2.6 parts of coal gangue powder, 1.8 parts of Nano titanium nitride, polyamide 6 part,
3.8 parts of trimellitic anhydride N-butyl, 4.7 parts of triethanolamine, 31 parts of solvent, 2.7 parts of auxiliary agent；
Wherein, the epoxy resin is modifying epoxy resin by organosilicon；
The acrylic resin is the acrylic resin containing epoxy group；
The modified manometer silicon dioxide is prepared according to following technique: using silane resin acceptor kh-550 as modifying agent pair
Nano silica is modified, and obtains amination nano silica；It is by amination nano silica, mass fraction
37% formalin mixing, 8h is reacted in ice-water bath, the toluene solution of parahydroxyben-zaldehyde is then added, anti-at 60 DEG C
5.5h is answered, washs after reaction, be dried to obtain the modified manometer silicon dioxide；
In the preparation process of modified manometer silicon dioxide, the weight ratio of silane resin acceptor kh-550, nano silica
For 0.7:1；The weight ratio of formalin, parahydroxyben-zaldehyde that amination nano silica, mass fraction are 37% is
1.4:0.8:2；
The black average grain diameter of the nano-titanium is 100nm；
The solvent is methylisobutylketone；
The auxiliary agent includes anti-settling agent, wetting dispersing agent, defoaming agent and levelling agent, and anti-settling agent, wetting dispersing agent, defoaming
The weight ratio of agent and levelling agent is 3:0.2:0.9:0.1.
Embodiment 5
A kind of corrosion-resistant heat resistant epoxide resin coating proposed by the present invention, raw material includes: epoxy resin 52 by weight
Part, 3.3 parts of acrylic resin, 6.5 parts of silicone resin, 3.7 parts of trbasic zinc phosphate, 4 parts of modified manometer silicon dioxide, 1 part of flake asbestos, carbon
1.2 parts of fiber, nano-titanium be 0.9 part black, 0.6 part of hydrotalcite, 2 parts of coal gangue powder, 2 parts of Nano titanium nitride, 5.3 parts of polyamide, partially
5 parts of benzenetricarboxylic anhydride N-butyl, 3.8 parts of triethanolamine, 31 parts of solvent, 2 parts of auxiliary agent；
Wherein, the epoxy resin is modifying epoxy resin by organosilicon；
The acrylic resin is the acrylic resin containing epoxy group；
The modified manometer silicon dioxide is prepared according to following technique: using silane resin acceptor kh-550 as modifying agent pair
Nano silica is modified, and obtains amination nano silica；It is by amination nano silica, mass fraction
37% formalin mixing, 7h is reacted in ice-water bath, the toluene solution of parahydroxyben-zaldehyde is then added, anti-at 65 DEG C
4h is answered, washs after reaction, be dried to obtain the modified manometer silicon dioxide；
In the preparation process of modified manometer silicon dioxide, the weight ratio of silane resin acceptor kh-550, nano silica
For 0.6:1；The weight ratio of formalin, parahydroxyben-zaldehyde that amination nano silica, mass fraction are 37% is
1.5:0.7:2.6；
The black average grain diameter of the nano-titanium is 90nm；
The solvent is the mixture of methylisobutylketone, dimethylbenzene, acetone, furfural；
The auxiliary agent includes anti-settling agent, wetting dispersing agent, defoaming agent and levelling agent, and anti-settling agent, wetting dispersing agent, defoaming
The weight ratio of agent and levelling agent is 2.6:0.7:0.6:0.5.
Comparative example 1
With embodiment 5 only difference is that, do not add the modified manometer silicon dioxide of embodiment 5.
Comparative example 2
With embodiment 5 only difference is that, the modified manometer silicon dioxide in embodiment 5 is replaced with into common nanometer two
Silica.
Comparative example 3
With embodiment 5 only difference is that, the modified manometer silicon dioxide in embodiment 5 is replaced with into silane coupling agent
Modified manometer silicon dioxide.
Comparative example 4
With embodiment 5 only difference is that, without containing the silicone resin in embodiment 5.
It is detected using thermal stability of the thermogravimetric analysis to coating, the thermal decomposition temperature of coating exists in embodiment 1-5
237.8 DEG C or more；The thermal decomposition temperature of embodiment 5 is 276.4 DEG C, and the thermal decomposition temperature of comparative example 1 is 176.3 DEG C, comparative example 2
Thermal decomposition temperature be 203.6 DEG C, the thermal decomposition temperature of comparative example 3 is 225.0 DEG C, and the thermal decomposition temperature of comparative example 4 is 232.1
℃。
According to the test method of GB/T 1043, (48kJ/m, room temperature) is tested to the impact resistance of coating, after tested
Know, the equal flawless of coating film in embodiment 1-5 and comparative example 4, and film has crackle in comparative example 1-3.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of corrosion-resistant heat resistant epoxide resin coating, which is characterized in that its raw material includes: epoxy resin 40-60 by weight
Part, 2-5 parts of acrylic resin, 3-8 parts of silicone resin, 2-5 parts of trbasic zinc phosphate, 2-6 parts of modified manometer silicon dioxide, flake asbestos 0.5-
1.8 parts, 0.3-1.7 parts of carbon fiber, nano-titanium be 0.5-1.6 parts black, 0.1-1 parts of hydrotalcite, 1-2.8 parts of coal gangue powder, nanometer nitrogen
Change titanium 1-3 parts, 2-7 parts of polyamide, 3-6 parts of trimellitic anhydride N-butyl, 2-5 parts of triethanolamine, 29-38 parts of solvent, auxiliary agent 1-3
Part.
2. corrosion-resistant heat resistant epoxide resin coating according to claim 1, which is characterized in that the epoxy resin is organosilicon
Modified epoxy.
3. corrosion-resistant heat resistant epoxide resin coating according to claim 1 or claim 2, which is characterized in that the acrylic resin is
Acrylic resin containing epoxy group.
4. corrosion-resistant heat resistant epoxide resin coating described in any one of -3 according to claim 1, which is characterized in that the modification is received
Rice silica is prepared according to following technique: being changed using silane resin acceptor kh-550 as modifying agent to nano silica
Property, obtain amination nano silica；Amination nano silica, the formalin that mass fraction is 37% are mixed,
5-8h is reacted in ice-water bath, and the toluene solution of parahydroxyben-zaldehyde is then added, 3.5-5.5h is reacted at 60-70 DEG C, instead
It washed after answering, be dried to obtain the modified manometer silicon dioxide.
5. corrosion-resistant heat resistant epoxide resin coating according to claim 4, which is characterized in that in modified manometer silicon dioxide
In preparation process, silane resin acceptor kh-550, nano silica weight ratio be 0.4-0.7:1；Amination nanometer titanium dioxide
The weight ratio of formalin, parahydroxyben-zaldehyde that silicon, mass fraction are 37% is 1.4-1.7:0.5-0.8:2-3.
6. corrosion-resistant heat resistant epoxide resin coating described in any one of -5 according to claim 1, which is characterized in that the nano-titanium
Black average grain diameter is 80-100nm.
7. corrosion-resistant heat resistant epoxide resin coating described in any one of -6 according to claim 1, which is characterized in that the solvent is
The mixture of one or more of methylisobutylketone, dimethylbenzene, acetone, furfural.
8. corrosion-resistant heat resistant epoxide resin coating described in any one of -7 according to claim 1, which is characterized in that the auxiliary agent packet
Include anti-settling agent, wetting dispersing agent, defoaming agent and levelling agent, and the weight ratio of anti-settling agent, wetting dispersing agent, defoaming agent and levelling agent
For 2-3:0.2-1:0.3-0.9:0.1-1.
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Cited By (6)
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| CN111269626A (en) * | 2020-02-28 | 2020-06-12 | 南京长江涂料有限公司 | Preparation method of epoxy acrylic polysiloxane self-cleaning coating |
| CN112430410A (en) * | 2020-10-22 | 2021-03-02 | 宁波爱甬新材料科技有限公司 | Weather-resistant anticorrosive powder coating and preparation method thereof |
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| CN113636800A (en) * | 2021-06-29 | 2021-11-12 | 安徽华畅新型建材有限责任公司 | Anticorrosive anti-freeze anti-cracking reinforced concrete culvert pipe |
| CN113908931A (en) * | 2021-09-30 | 2022-01-11 | 玉和建设有限公司 | Special repairing agent for boiler flue gas desulfurization tower and production process thereof |
| CN116333558A (en) * | 2023-03-06 | 2023-06-27 | 铁法煤业集团铁强环保材料股份有限公司 | Preparation process flow of high-doping-amount gangue industrial anticorrosive paint |
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